imtdev::CDeviceIdBasedAttributesComp

Selection-based device attributes component. More...

#include <CDeviceIdBasedAttributesComp.h>

Inherits ilog::CLoggerComponentBase.

Detailed Description

Selection-based device attributes component.

CDeviceIdBasedAttributesComp manages device attributes that automatically synchronize with device selection, providing separate static and instance-specific attribute providers. It observes device selection, state changes, and instance attribute updates to maintain current attribute values.

Purpose:

Enables UI binding to device attributes by:

• Automatically loading attributes when device is selected
• Maintaining separate static and instance attributes
• Synchronizing with device state transitions
• Providing change notifications for UI updates

Key Features:

• Dual Attribute Sets: Separate managers for static and instance attributes
• Selection Awareness: Updates when selected device changes
• State Tracking: Refreshes attributes on device state changes
• Automatic Synchronization: Syncs with device instance attribute changes
• Sub-Element Access: Exposes static and instance attributes as separate sub-elements

Component Structure:

The component exposes multiple sub-elements:

• StaticAttributes: Device specification static attributes (IAttributesProvider)
• InstanceAttributes: Device instance runtime attributes (IAttributesProvider)

Component Configuration:

• DeviceSelection: Reference to ISelection providing selected device ID
• DeviceController: Reference to IDeviceController for device instance access
• DeviceStateProvider: Reference to IDeviceStateProvider for state monitoring

Attribute Types:

• Static Attributes: From device specification (e.g., supported features, hardware limits)
• Instance Attributes: From device instance (e.g., temperature, calibration date, serial number)

Usage Pattern:

// Obtain attributes component instance (via component system)
CDeviceIdBasedAttributesComp* pAttrs = // get from component system
 
// Component is configured with required dependencies:
// - DeviceSelection reference
// - DeviceController reference
// - DeviceStateProvider reference
 
// Access static attributes
const iattr::IAttributesProvider* pStaticAttrs = pAttrs->GetStaticAttributes();
QVariant maxResolution = pStaticAttrs->GetAttributeValue("MaxResolution");
 
// Access instance attributes
const iattr::IAttributesProvider* pInstanceAttrs = pAttrs->GetInstanceAttributes();
QVariant temperature = pInstanceAttrs->GetAttributeValue("Temperature");
QVariant serialNumber = pInstanceAttrs->GetAttributeValue("SerialNumber");

See also

IDeviceInstance

IDeviceSpecification

imtbase::ISelection

Definition at line 81 of file CDeviceIdBasedAttributesComp.h.